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<?php
namespace Auth;
use Event\AuthEvent;
use OAuth\Common\Storage\Session;
use OAuth\Common\Consumer\Credentials;
use OAuth\Common\Http\Uri\UriFactory;
use OAuth\ServiceFactory;
use OAuth\Common\Http\Exception\TokenResponseException;
/**
* GitHub backend
*
* @package auth
*/
class GitHub extends Base
{
/**
* Backend name
*
* @var string
*/
const AUTH_NAME = 'Github';
/**
* Authenticate a GitHub user
*
* @access public
* @param string $github_id GitHub user id
* @return boolean
*/
public function authenticate($github_id)
{
$user = $this->user->getByGitHubId($github_id);
if (! empty($user)) {
$this->userSession->refresh($user);
$this->container['dispatcher']->dispatch('auth.success', new AuthEvent(self::AUTH_NAME, $user['id']));
return true;
}
return false;
}
/**
* Unlink a GitHub account for a given user
*
* @access public
* @param integer $user_id User id
* @return boolean
*/
public function unlink($user_id)
{
return $this->user->update(array(
'id' => $user_id,
'github_id' => '',
));
}
/**
* Update the user table based on the GitHub profile information
*
* @access public
* @param integer $user_id User id
* @param array $profile GitHub profile
* @return boolean
* @todo Don't overwrite existing email/name with empty GitHub data
*/
public function updateUser($user_id, array $profile)
{
return $this->user->update(array(
'id' => $user_id,
'github_id' => $profile['id'],
'email' => $profile['email'],
'name' => $profile['name'],
));
}
/**
* Get the GitHub service instance
*
* @access public
* @return \OAuth\OAuth2\Service\GitHub
*/
public function getService()
{
$uriFactory = new UriFactory();
$currentUri = $uriFactory->createFromSuperGlobalArray($_SERVER);
$currentUri->setQuery('controller=user&action=gitHub');
$storage = new Session(false);
$credentials = new Credentials(
GITHUB_CLIENT_ID,
GITHUB_CLIENT_SECRET,
$currentUri->getAbsoluteUri()
);
$serviceFactory = new ServiceFactory();
return $serviceFactory->createService(
'gitHub',
$credentials,
$storage,
array('')
);
}
/**
* Get the authorization URL
*
* @access public
* @return \OAuth\Common\Http\Uri\Uri
*/
public function getAuthorizationUrl()
{
return $this->getService()->getAuthorizationUri();
}
/**
* Get GitHub profile information from the API
*
* @access public
* @param string $code GitHub authorization code
* @return bool|array
*/
public function getGitHubProfile($code)
{
try {
$gitHubService = $this->getService();
$gitHubService->requestAccessToken($code);
return json_decode($gitHubService->request('user'), true);
}
catch (TokenResponseException $e) {
return false;
}
}
/**
* Revokes this user's GitHub tokens for Kanboard
*
* @access public
* @return bool|array
* @todo Currently this simply removes all our tokens for this user, ideally it should
* restrict itself to the one in question
*/
public function revokeGitHubAccess()
{
try {
$gitHubService = $this->getService();
$basicAuthHeader = array('Authorization' => 'Basic ' .
base64_encode(GITHUB_CLIENT_ID.':'.GITHUB_CLIENT_SECRET));
return json_decode($gitHubService->request('/applications/'.GITHUB_CLIENT_ID.'/tokens', 'DELETE', null, $basicAuthHeader), true);
}
catch (TokenResponseException $e) {
return false;
}
}
}
|
